FOR IMMEDIATE RELEASE

                       INFORMATION HOLDINGS INC. ACQUIRES
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                             TRANSCENDER CORPORATION
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     NEW YORK, November 6, 2000 - Information Holdings Inc. (NYSE: IHI) today
announced that it has acquired Transcender Corporation ("Transcender") in an
asset purchase transaction for cash consideration of approximately $60 million.

     Transcender is a leading provider of on-line IT certification products. Its
products include exam simulations for certifications from major hardware and
software providers. Transcender develops content and related software
distributed over the Internet and in other electronic media to information
technology professionals seeking certification in numerous product areas and
programming languages.

     Commenting on the announcement, Mason Slaine, President and CEO of IHI
said, "We are very pleased to enter the IT e-learning business through the
acquisition of Transcender, a market leader. We believe the on-line IT training
market presents exceptional business opportunities, with Transcender providing
an excellent platform for future growth. We will continue to develop our core
intellectual property and scientific information businesses, while building our
presence in the IT training market."

     Information Holdings will broadcast a conference call discussing the
transaction via the Internet on Wednesday, November 8th, 2000 at 9:30 a.m. est.
The broadcast can be accessed through the Company's web site at
www.informationholdings.com.
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About Information Holdings Inc.
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Information Holdings Inc. is a leading provider of information products and
services, primarily to the intellectual property and scientific markets. Through
its CorporateIntelligence.com unit, which includes MicroPatent(R) and Master
Data Center(TM), the Company provides a broad array of databases, information
products and complementary services for intellectual property professionals. The
Company is recognized as a leading provider of intellectual property information
over the Internet. In addition, the Company's CRC Press(R) business publishes
professional and academic books, journals, newsletters and electronic databases
covering areas such as life sciences, environmental sciences, engineering,
mathematics, physical sciences and business. Information Holdings Inc. is listed
on the New York Stock Exchange and trades under the symbol: IHI.

This press release includes statements which may constitute forward-looking
statements made pursuant to safe harbor provisions of the Private Securities
Litigation Reform Act of 1995. Although the Company believes the expectations
contained in such forward-looking statements are reasonable, it can give no
assurance that such expectations will prove to be correct. This information may
involve risks and uncertainties that could cause actual results to differ
materially from the forward-looking statements. Factors which could cause or
contribute to such differences include, but are not limited to, factors detailed
in the Company's Securities and Exchange Commission filings.

For further information, contact:
Vincent A. Chippari
Information Holdings Inc.
203-961-9208
vchippari@informationholdings.com